(PECL imagick 2.0.0)
ImagickPixel::__construct — The ImagickPixel constructor
$color
] )本函数还未编写文档，仅有参数列表。
Constructs an ImagickPixel object. If a color is specified, the object is constructed and then initialised with that color before being returned.
color
The optional color string to use as the initial value of this object.
Returns an ImagickPixel object on success, throwing ImagickPixelException on failure.